SEAT BODY NOISE - FILLER PANEL SLAP, ADD NEW SPRING

SUBJECT: SEAT FILLER PANEL SLAP (INSTALL REVISED TORQUE ROD)

VEHICLES AFFECTED: 1983 - 1991 S/T UTILITY VEHICLES ----------------------------------------------------------------------------

THIS BULLETIN IS BEING REVISED TO UPDATE MODEL YEARS, MODELS, PART NUMBER, PROCEDURE AND LABOUR OPERATION.

Some 1983 - 1991 S/T utility vehicles may experience a rear seat filler panel slap against the seat back during acceleration.

This condition results from insufficient torque rod spring pressure and may be more evident on the 4 door utility vehicle because of the increased height of the filler panel.

To repair this condition it is necessary to replace the torque rod spring with a larger diameter torque rod spring (P/N 15674883).

This condition was initially resolved in Production by installing 2 small diameter torque rod springs. The final resolution was to install a single torque rod spring with increased diameter. Either of the production resolutions will provide increased pressure and prevent the filler panel from slapping.

This condition was resolved in Production after the following VIN breakpoints:

MORAINE GMC M2534705 Chevrolet M2224077

PONTIAC WEST GMC Start of Production 1992 Chevrolet Start of Production 1992

IMPORTANT!

If two (2) torque rod springs are already installed, replacement with a new larger diameter spring is not required.

SERVICE PROCEDURE:

1. Remove outer nuts Refer to Figure 1.

2. Loosen centre nut.

3. Fold down filler panel and remove centre bolt.

4. Raise filler panel.

5. Remove single torque rod spring.

6. Install new torque rod spring (P/N 15674883) and centre bolt.

7. Lower filler panel.

8. Start centre nut.

9. Raise filler panel and tighten centre nut.

10. Install and tighten outer nuts.

IMPORTANT!

Remove centre torque rod bolt when the filler panel is in the down position. It is not necessary to replace the filler panel.

SERVICE INFORMATION

PART NUMBER DESCRIPTION QTY ----------- ----------- --- 15674883 Torque rod 1

Parts are currently available from CANSPO.

WARRANT INFORMATION

For vehicles repaired under warranty use:

LABOUR OPERATION DESCRIPTION LABOUR TIME ---------------- ----------- ----------- C7480 Torque rod, folding second seat, 0.2 hrs. replace

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.